Process for obtaining fibers fit to be spun from muscular flesh



Patented Apr. 24, 1934 UNITED STATES PATENT OFFICE PROCESS FOR OBTAINING FIBERS FIT TO BE SPUN FROM MUSCULAR FLESH Paul Bost, Berlin-Lichtenberg, Germany 2 Claims.

The obtaining of fibers fit to be spun from muscular flesh (for instance for producing cords for surgical ligatures and textures) has been made up to now in the way, that for instance after the effected mazerising or digesting the muscular flesh is dried and from the dry texture the fibers fit to be spun are obtained mechanically for instance by striking, pulling, squeezing, rubbing or the like. As in consequence of the remaining adhesive materials (albumen or the like) by the drying of the mazerised or digested muscular flesh the fibers again stick together the mechanical obtaining of fibers is not only very difficult and circumstantial, but first of all it has the disadvantage, that only proportionally small quantities of fibers are really obtained. As by the striking and so on of the again sticked together fibers much waste is produced, principally as in consequence of the sticking together the mechanical treatment must set in very strongly, whereby in the first place the greatest number of the finer respectively weaker fibers is destroyed by tearing or breaking, while the rest can not be divided at all or only very difficult to the fineness necessary for the spinning. Therefore the proportionally few fibers, which are indeed obtained, can be spun badly as they are not sufficiently fine.

According to the invention the defects are prevented thereby that the muscular flesh prepared by mazerising or digesting is treated with such agents, which depose in form of crystals or in form of an amorphous sediment and enclose the fibers, that means insulate the same from each other and prevent their again sticking together. These agents are added to the muscular flesh either directly before the drying in form of solutions, which crystallize during the drying in the finest form in and on the fibers, or muscular flesh the invention for instance carbonic alkalies,

chlorides and a number of sulphates may be used as suitable filling respectively insulating agents. So for instance the prepared and well watered muscular flesh can be placed for about three to five days in a saturated solution of sodium sulphate (about 30%). The sodium sulphate enters the inner part of the flesh texture and displaces the water being therein. At the drying of the muscular flesh the sodium sulphate crystallizes in the finest form around each single small fiber and by this action the complete insulation is attained. Or the muscular flesh is bathed for instance in a solution of soda, so that after the addition of chloride of calcium carbonate of lime is created in form of an amorphous sediment, which surrounds the single fibers.

I claim:

1. A process for obtaining fibers fit to be spun from muscular flesh consisting in impregnating the muscular flesh prepared in known manner by mazerising or digesting before the drying with solutions of such agents, which depose in form of crystals or by sediment between the fibers and enclose the same.

2. A process for obtaining fibers fit to be spun 

